PCB limiting mechanism for chip mounter

Abstract

The utility model discloses a PCB limiting mechanism for a chip mounter, which belongs to the technical field of chip mounters and comprises a base, a placement table is arranged at the top of the base, moving assemblies are arranged on the front side and the back side of the bottom of the placement table, and a limiting assembly is arranged at the top of the placement table. The limiting assembly comprises an air extracting pump fixedly assembled in an inner cavity of the base, an air sucking opening of the air extracting pump communicates with an inner cavity of the containing table through an air sucking pipe, an air sucking hole is formed in the top of the containing table, and a protection assembly is arranged in the inner cavity of the containing table. Negative pressure is generated in the inner cavity of the placing table through the air suction pump and the air suction pipe, at the moment, suction force can be generated by the air suction holes, a PCB on the top of the placing table is limited, suction fixation is achieved through air pressure adsorption, too large physical pressure cannot be generated on the PCB, and therefore the PCB can be effectively protected and prevented from being damaged.

Description

TECHNICAL FIELD

[0001] The utility model relates to patch machine technical field, concretely is a kind of PCB board limiting mechanism for patch machine. BACKGROUND

[0002] PCB Chinese name is printed circuit board, also called printed wiring board, is important electronic component, is the support body of electronic component, is the carrier of electronic component electrical connection, since it is made by electronic printing, is called "printed" circuit board.

[0003] Through the search, prior art, Chinese patent publication (announcement) No. CN213662084U discloses a patch jig for PCB board, the utility model, through the limiting mechanism, the PCB board is conveniently clamped between two limiting clamping blocks and is preliminarily fixed, and the limiting clamping block can be pulled open by the cooperation of the sliding rod, spring and knob, so that the PCB board is taken out, the two clamping blocks of the clamping mechanism slide to the middle part of the mounting plate, so as to further clamp and fix the PCB board, the clamping mechanism and the limiting mechanism are matched, so that the PCB board of different sizes can be fixed, the error of patch position caused by unstable installation of PCB board during patching is prevented, time and labor are saved, and the mounting and dismounting are quick.

[0004] But the device still has the following defects: the traditional clamp usually exerts certain pressure on the edge or surface of the PCB board, which can cause some relatively fragile or thin PCB boards to deform or be damaged.

[0005] Therefore, the technical personnel in the art provide a PCB board limiting mechanism for patch machine to solve the problems mentioned in the prior art. UTILITY MODEL CONTENT

[0006] In order to solve the above problems, the utility model provides a PCB board limiting mechanism for patch machine.

[0007] The utility model is realized through the following technical schemes:

[0008] A PCB board limiting mechanism for patch machine, comprising a base, a placing table is arranged on the top of the base, a moving assembly is arranged on the front and back surfaces of the bottom of the placing table, a limiting assembly is arranged on the top of the placing table, the limiting assembly comprises an air suction pump fixedly assembled in the inner cavity of the base, the air suction port of the air suction pump is communicated with the inner cavity of the placing table through a suction pipe, a suction hole is arranged on the top of the placing table, a protection assembly is arranged in the inner cavity of the placing table, and a positioning assembly is arranged on the front and back surfaces of the top of the placing table.

[0009] As preferred, the protection assembly comprises a filter screen fixedly connected to the inner wall of the inner cavity of the placing table, the filter screen is located at the inner side of the air suction pipe and the air suction hole, and the inner cavity of the placing table is provided with a backflush assembly.

[0010] As preferred, the backflush assembly comprises a clean air pump fixedly assembled at one side of the placing table, the air outlet of the clean air pump is communicated with the inner cavity of the placing table through an air outlet pipe, and the air outlet pipe is located at the top of the filter screen.

[0011] As preferred, the end portions of the air outlet pipe and the air suction pipe are fixedly provided with electromagnetic valves respectively, the front surface of the base is fixedly provided with a PLC controller, and the electromagnetic valves are electrically connected with the PLC controller through wires.

[0012] As preferred, the moving assembly comprises electric sliding rails fixedly assembled at the top front surface and the top back surface of the base, the top portions of the electric sliding rails are fixedly connected with sliding seats through screws respectively, and the sliding seats are fixedly connected to the bottom of the placing table.

[0013] As preferred, the positioning assembly comprises an electric push rod fixedly assembled at the top back surface of the placing table, the telescopic rod of the electric push rod is fixedly connected with a positioning block, and the front surface of the top of the placing table is fixedly connected with a fixed block.

[0014] As preferred, the top of the base is provided with a through slot, and the air suction pipe penetrates through the through slot and is movably connected to the inner cavity of the through slot.

[0015] Compared with the prior art, the utility model has the advantages that:

[0016] 1. The utility model discloses a structure design of the air suction pump, the air suction pipe and the air suction hole, the inner cavity of the placing table is made into negative pressure through the air suction pump and the air suction pipe, the air suction hole produces suction force at this moment, thereby the PCB board on the top of the placing table is positioned, and the air suction is fixed through air pressure adsorption, so that the PCB board can be effectively protected and damage can be avoided.

[0017] 2. The filter screen can protect the air suction pipe, avoids the air suction pipe from being blocked, and the cooperation of the clean air pump and the air outlet pipe can increase the air pressure in the inner cavity of the placing table, so that the gas is discharged from the air suction hole, and the air suction hole is prevented from being blocked. BRIEF DESCRIPTION OF DRAWINGS

[0018] Fig. 1 It is an overall structure schematic view of the utility model;

[0019] Fig. 2 It is a placing table cross section structure schematic view of the utility model;

[0020] Fig. 3The utility model discloses a A area amplification structure schematic diagram of the utility model discloses a base sectional structure schematic diagram.

[0021] Fig. 4 The utility model discloses a base sectional structure schematic diagram.

[0022] In the drawing: 1, base, 2, place table, 3, air suction pump, 4, air suction pipe, 5, air suction hole, 6, filter screen, 7, clean air pump, 8, air outlet pipe, 9, electromagnetic valve, 10, PLC controller, 11, electric slide rail, 12, electric push rod, 13, positioning block, 14, fixed block, 15, through slot. Specific implementation

[0023] The technical scheme in the embodiments of the utility model will be clearly and completely described below with reference to the drawings in the embodiments of the utility model, and apparently, the described embodiments are only part of the embodiments of the utility model, not all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by the person skilled in the art without creative labor belong to the range protected by the utility model.

[0024] Please refer to Figs. 1-4 The embodiments provided by the utility model discloses an embodiment:

[0025] The application embodiment discloses a PCB board limiting mechanism for a chip mounter, which comprises a base 1, the top of the base 1 is provided with a placing table 2, the front surface and the back surface of the bottom of the placing table 2 are both provided with a moving assembly, the top of the placing table 2 is provided with a limiting assembly, the limiting assembly comprises an air suction pump 3 fixedly assembled in the inner cavity of the base 1, the air suction port of the air suction pump 3 is communicated with the inner cavity of the placing table 2 through an air suction pipe 4, the top of the placing table 2 is provided with an air suction hole 5, the inner cavity of the placing table 2 is provided with a protection assembly, and the front surface and the back surface of the top of the placing table 2 are both provided with a positioning assembly.

[0026] As a technical optimization scheme of the utility model, the limiting assembly can be used for the fixation of the PCB board, especially in the efficient automatic production process, has great advantage, compared with the traditional mechanical clamp, the air suction fixation system can provide higher flexibility, protection and accuracy.

[0027] The air suction hole 5 is in rectangular array distribution, so that the stress of the PCB board is uniform, and the stability of the limiting is improved.

[0028] The protection assembly comprises a filter screen 6 fixedly connected to the inner wall of the inner cavity of the placing table 2, the filter screen 6 is located on the inner side of the air suction pipe 4 and the air suction hole 5, and the inner cavity of the placing table 2 is provided with a backflush assembly.

[0029] As a technical optimization scheme of the utility model, the filter screen 6 can protect the air suction pipe 4, avoid the blockage caused by the external sundries entering the pipeline, and avoid unnecessary troubles to the PCB board limiting.

[0030] The backflushing assembly comprises a cleaning gas pump 7 fixedly assembled on one side of the placing table 2, the air outlet of the cleaning gas pump 7 is communicated with the inner cavity of the placing table 2 through an air outlet pipe 8, and the air outlet pipe 8 is located on the top of the filter screen 6.

[0031] As a technical optimization scheme of the utility model, the cooperation of the cleaning gas pump 7 and the air outlet pipe 8 can increase the air pressure in the placing table 2, and some sundries blocked in the air suction hole 5 can be discharged from the inner cavity of the air suction hole 5 along with the gas.

[0032] The end portions of the air outlet pipe 8 and the air suction pipe 4 are fixedly assembled with electromagnetic valves 9, the front surface of the base 1 is fixedly assembled with a PLC controller 10, and the electromagnetic valves 9 are electrically connected with the PLC controller 10 through wires.

[0033] As a technical optimization scheme of the utility model, when the air suction pump 3 and the air suction pipe 4 work, the electromagnetic valve 9 on the air outlet pipe 8 can be closed through the PLC controller 10, so that the suction force of the air suction hole 5 is guaranteed, and vice versa, when the cleaning gas pump 7 and the air outlet pipe 8 work, the electromagnetic valve 9 on the air suction pipe 4 can be closed through the PLC controller 10, so that the gas can be discharged from the air suction hole 5.

[0034] The moving assembly comprises electric sliding rails 11 fixedly assembled on the top front surface and the top back surface of the base 1, the top portions of the electric sliding rails 11 are fixedly connected with sliding seats through screws, and the sliding seats are fixedly connected to the bottom of the placing table 2.

[0035] As a technical optimization scheme of the utility model, the cooperation of the electric sliding rails 11 and the sliding seats can adjust the horizontal position of the placing table 2, so as to meet different processing requirements.

[0036] The positioning assembly comprises an electric push rod 12 fixedly assembled on the top back surface of the placing table 2, the telescopic rod of the electric push rod 12 is fixedly connected with a positioning block 13, and the front surface of the top of the placing table 2 is fixedly connected with a fixed block 14.

[0037] As a technical optimization scheme of the utility model, the electric push rod 12 can drive the positioning block 13 to move, so as to adjust the distance between the positioning block 13 and the fixed block 14, and the user can adjust according to the size requirement of the actual PCB board, so as to realize the preliminary positioning of the PCB board.

[0038] A through slot 15 is formed in the top of the base 1, and the air suction pipe 4 penetrates through the through slot 15 and is movably connected to the inner cavity of the through slot 15.

[0039] As a technical optimization scheme of the utility model, through the through slot 15 can conveniently move the suction pipe 4, make the suction pipe 4 can move along with the placing table 2.

[0040] Working principle: the user places PCB board on the top of placing table 2, then closes electromagnetic valve 9 on air outlet pipe 8 through PLC controller 10, then makes suction pipe 4 produce suction force through air pump 3, so that the inner cavity of placing table 2 forms negative pressure, thereby can carry out air pressure adsorption to PCB board through suction hole 5, simultaneously will not produce excessive physical pressure to board material, avoid damaging, and cooperate through filter screen 6 can filter sundries, so as to avoid suction pipe 4 blockage influence on the fixation of PCB board, if the inside of suction hole 5 is clamped with sundries when long-term use, can close electromagnetic valve 9 on suction pipe 4 through PLC controller 10, and improve the internal air pressure of placing table 2 through cleaning air pump 7 and air outlet pipe 8, so that gas is discharged from suction hole 5, and the sundries in suction hole 5 are backflushed and cleaned, thereby avoid suction hole 5 blockage influence on the fixation of PCB board.

[0041] In the utility model, unless another explicit provision and limitation, the terms "installation", "arrangement", "connection", "fixation", "screw connection" and the like terms should be understood broadly, for example, can be fixed connection, also can be detachable connection, or integrated;Can be mechanical connection, also can be electrical connection;Can be directly connected, also can be indirectly connected through intermediate medium, can be the communication of two element interiors or the interaction of two elements, unless another explicit limitation, for the ordinary skilled in the art, can understand the specific meaning of the above-mentioned terms in the utility model according to specific circumstances.

[0042] In conclusion, only for the preferred embodiment of the utility model, and not use to limit the scope of the utility model implementation, the shape, structure, feature and spirit described in the utility model claim range are all equal changes and modifications, and should be included in the claim range of the utility model.

Claims

1. A PCB limiting mechanism for a chip mounter, comprising a base (1), characterized in that: The top of the base (1) is provided with a placing table (2), the front and back surfaces of the bottom of the placing table (2) are provided with moving assemblies, the top of the placing table (2) is provided with a limiting assembly, the limiting assembly comprises an air suction pump (3) fixedly assembled in the inner cavity of the base (1), the air suction port of the air suction pump (3) is communicated with the inner cavity of the placing table (2) through an air suction pipe (4), the top of the placing table (2) is provided with an air suction hole (5), the inner cavity of the placing table (2) is provided with a protection assembly, and the front and back surfaces of the top of the placing table (2) are provided with positioning assemblies.

2. The PCB limiting mechanism for a chip mounter according to claim 1, characterized in that: The protection assembly comprises a filter screen (6) fixedly connected to the inner wall of the inner cavity of the placing table (2), the filter screen (6) is located on the inner side of the air suction pipe (4) and the air suction hole (5), and the inner cavity of the placing table (2) is provided with a backflushing assembly.

3. The PCB limiting mechanism for a chip mounter according to claim 2, characterized in that: The backflushing assembly comprises a clean air pump (7) fixedly assembled on one side of the placing table (2), the air outlet of the clean air pump (7) is communicated with the inner cavity of the placing table (2) through an air outlet pipe (8), and the air outlet pipe (8) is located on the top of the filter screen (6).

4. The PCB limiting mechanism for a chip mounter according to claim 3, characterized in that: The end portions of the air outlet pipe (8) and the air suction pipe (4) are fixedly provided with electromagnetic valves (9), the front surface of the base (1) is fixedly provided with a PLC controller (10), and the electromagnetic valves (9) are electrically connected with the PLC controller (10) through wires.

5. The PCB limiting mechanism for a chip mounter according to claim 1, characterized in that: The moving assemblies comprise electric sliding rails (11) fixedly assembled on the top front and back surfaces of the base (1), the tops of the electric sliding rails (11) are all connected with sliding seats through screw threads, and the sliding seats are all fixedly connected to the bottom of the placing table (2).

6. The PCB limiting mechanism for a chip mounter according to claim 1, characterized in that: The positioning assemblies comprise electric push rods (12) fixedly assembled on the top back surface of the placing table (2), the telescopic rods of the electric push rods (12) are fixedly connected with positioning blocks (13), and the front surface of the top of the placing table (2) is fixedly connected with a fixed block (14).

7. The PCB limiting mechanism for a chip mounter according to claim 1, characterized in that: The top of the base (1) is provided with a through groove (15), and the air suction pipe (4) penetrates through the through groove (15) and is movably connected to the inner cavity of the through groove (15).

Images